u34 Reiport of the Horticui/i uual Dbpartmbnt of thb 



crop the mauure was applied at tlio rate of 5 per ct., 10 per ct., 

 15 per ct. and 20 per ct. by bulk, instead of by weight. In 

 order that the cumulative effects of the treatments might be 

 seen the soil was in no case renewed from 1898 till 1901. 



preparation of soil. 

 The clay loam was thoroughly mixed before being separated 

 into the various portions to be used in the experiments. In this 

 way its composition was rendered as uniform throughout as 

 possible. The sandy loam was similarly treated. Whenever a 

 portion of soil was to receive an application of manure this 

 was made for the first crop before it was measured into the 

 boxes, but for the following crops it was made to each box 

 separately. Three boxes were filled from each portion except 

 those portions which were mixed with one-third manure by bulk. 

 From each of the latter four boxes were filled, the soil in two 

 being packed firmly and in the other two left loose as already 

 explained. Where commercial fertilizers were used they were 

 applied to each box of soil separately as hereafter described. 



FERTILIZERS. 



The manure. — The manure was well rotted horse manure. For 

 the first crop it was applied to difl'ereut portions of soil at the 

 rate of 5 per ct., 10 per ct., 15 per ct. and 20 per ct. by Aveight, 

 and 33^ per ct. by bulk, but for the succeeding crops it was 

 used at the rate of 5 per ct., 10 per ct., 15 per ct., 20 per ct. 

 and 33^ per ct. by bulk, as has already been stated. This also 

 appears in the table on p. 337. 



The average weight per cubic foot of clay loam when prepared 

 for the first crop was about 68 pounds, and for the sandy loam 

 about 70 pounds. The area of each box was 225 square inches; 

 the contents of the part occupied by the soil was 1575 cubic 

 inches. From these data the following table is derived. It 

 shows for both the clay loam and the sandy loam, the dilferent 

 j)ercentages of manure by weight witli the corresponding per- 

 centages by bulk, the rate per acre in cords and in tons, and the 

 depth to which the manure would cover the soil when si^reud 

 evenly over the entire surface. 



